Worked on VCSEL pre-flight. Swapped out eeprom chip back to 50 Hz.
Catherine D. changed the baud rate from 38400 to 19200 for VCSEL to function.
PSF did not report any pressure on the initial boot of DSM 304. Cycled DSM power and it started working fine.
2D-C End Diode Voltages were low (I think). Will compare to other flights. 1.4, 1.6, 1.7, and lower throughout the flight. Cycling power had no effect.
***1757 - 1806***
During taxi and takeoff Nimbus locked up and Aeros stopped reporting data.
DSM Server and Nimbus went RED on the status page.
All other status messages remained GREEN. Time continued to cycle.
No action was taken. By the time I got turned around and saw what was happening, it started working again.
A gap in Aeros remained where the anomaly occurred.
Whether or not data was lost is unknown.
VCSEL misbehaved again today. Stuart forced some mode shifts from the ground but it was very inconsistent.
1855 Lost 2D-C probe. Cycled breaker. Took several minutes to come back.
1909 DPR entered ‘Service Mirror’ mode.
1914 DPL entered ‘Service Mirror’ mode.
(we had just descended from 30,000 to 4,000 feet which caused the dew point sensors to flood)
*1950 Once at a higher altitude ~15,000 feet (drier air), turned DPR and DPL back ON and they reported dew point again.
2213 DPR & DPL ran away.
2217 DPL reporting dew point again.
2225 DPR reporting dew point again.
***0013 - 0029***
During descent and landing Nimbus locked up and Aeros stopped reporting data.
DSM Server and Nimbus went RED on the status page.
All other status messages remained GREEN. Time continued to cycle.
I had Chris W. come out to the plane to help diagnose the problem.
A gap in Aeros remained where the anomaly occurred.
1 Comment
David Allbee
Flight Tech: Dave Allbee
Taxi - 1755
Takeoff - 1803
Landed - 0014
Worked on VCSEL pre-flight. Swapped out eeprom chip back to 50 Hz.
Catherine D. changed the baud rate from 38400 to 19200 for VCSEL to function.
PSF did not report any pressure on the initial boot of DSM 304. Cycled DSM power and it started working fine.
2D-C End Diode Voltages were low (I think). Will compare to other flights. 1.4, 1.6, 1.7, and lower throughout the flight. Cycling power had no effect.
***1757 - 1806***
During taxi and takeoff Nimbus locked up and Aeros stopped reporting data.
DSM Server and Nimbus went RED on the status page.
All other status messages remained GREEN. Time continued to cycle.
No action was taken. By the time I got turned around and saw what was happening, it started working again.
A gap in Aeros remained where the anomaly occurred.
Whether or not data was lost is unknown.
VCSEL misbehaved again today. Stuart forced some mode shifts from the ground but it was very inconsistent.
1855 Lost 2D-C probe. Cycled breaker. Took several minutes to come back.
1909 DPR entered ‘Service Mirror’ mode.
1914 DPL entered ‘Service Mirror’ mode.
(we had just descended from 30,000 to 4,000 feet which caused the dew point sensors to flood)
*1950 Once at a higher altitude ~15,000 feet (drier air), turned DPR and DPL back ON and they reported dew point again.
2213 DPR & DPL ran away.
2217 DPL reporting dew point again.
2225 DPR reporting dew point again.
***0013 - 0029***
During descent and landing Nimbus locked up and Aeros stopped reporting data.
DSM Server and Nimbus went RED on the status page.
All other status messages remained GREEN. Time continued to cycle.
I had Chris W. come out to the plane to help diagnose the problem.
A gap in Aeros remained where the anomaly occurred.
Whether or not data was lost is unknown.